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00000nam a22000003u 4500 |
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CoU |
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20081031000000.0 |
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100527e19871001cau s| f0|||||eng|d |
| 035 |
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|a (TOE)ost938537
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|a (TOE)938537
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|a TOE
|c TOE
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|a GDWR
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|a 99
|2 edbsc
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|a E 1.99:lbl-22659
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|a E 1.99:lbl-22659
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| 245 |
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|a EVIDENCE FOR COMET STORMS IN METEORITE AGES
|h [electronic resource]
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| 260 |
|
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|a Berkeley, Calif. :
|b Lawrence Berkeley National Laboratory ;
|a Oak Ridge, Tenn. :
|b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
|c 1987.
|
| 336 |
|
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|a text
|b txt
|2 rdacontent.
|
| 337 |
|
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|a computer
|b c
|2 rdamedia.
|
| 338 |
|
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|a online resource
|b cr
|2 rdacarrier.
|
| 500 |
|
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|a Published through the Information Bridge: DOE Scientific and Technical Information.
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| 500 |
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|a 10/01/1987.
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| 500 |
|
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|a "lbl-22659"
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| 500 |
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|a Icarus FT.
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| 500 |
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|a Muller, R.A.; Perlmutter, S.
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| 500 |
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|a Physics Division.
|
| 520 |
3 |
|
|a Clustering of cosmic-ray exposure ages of H chondritic meteorites occurs at 7 ± 3 and 30 ± 6 Myr ago. There is independent evidence that comet storms have occurred at the same times, based on the fossil record of family and genus extinctions, impact craters and glass, and geomagnetic reversals. We suggest that H chondrites were formed by the impact of shower comets on asteroids. The duration of the most recent comet shower was ≤ 4 Myr, in agreement with storm theory.
|
| 536 |
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|b DE-AC02-05CH11231.
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| 650 |
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7 |
|a Asteroids.
|2 local.
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| 650 |
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7 |
|a Meteorites.
|2 local.
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| 650 |
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7 |
|a Comets.
|2 local.
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| 650 |
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7 |
|a Storms.
|2 local.
|
| 650 |
|
7 |
|a Glass.
|2 local.
|
| 650 |
|
7 |
|a Chondrites.
|2 local.
|
| 710 |
2 |
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|a Lawrence Berkeley National Laboratory.
|4 res.
|
| 710 |
1 |
|
|a United States.
|b Department of Energy.
|b Office of Scientific and Technical Information.
|4 dst.
|
| 856 |
4 |
0 |
|u http://www.osti.gov/servlets/purl/938537-GEvSv3/
|z Online Access
|
| 907 |
|
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|a .b59903818
|b 03-06-23
|c 05-27-10
|
| 998 |
|
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|a web
|b 05-27-10
|c f
|d m
|e p
|f eng
|g cau
|h 0
|i 1
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| 956 |
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|a Information bridge
|
| 999 |
f |
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|i 49cfa25e-2fe7-5793-8068-1221a76cf3a3
|s b653fae3-cc62-5a9e-8a80-f366ac857b94
|
| 952 |
f |
f |
|p Can circulate
|a University of Colorado Boulder
|b Online
|c Online
|d Online
|e E 1.99:lbl-22659
|h Superintendent of Documents classification
|i web
|n 1
|
